Remove other gonk widget conditionals and unused files.

Tag #288.

1 files changed, 0 insertions, 1649 deletions

diff --git a/dom/wifi/WifiP2pManager.jsm b/dom/wifi/WifiP2pManager.jsm
deleted file mode 100644
index c1b687438..000000000
--- a/dom/wifi/WifiP2pManager.jsm
+++ /dev/null
@@ -1,1649 +0,0 @@
-/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
-/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
-
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/StateMachine.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
-Cu.import("resource://gre/modules/systemlibs.js");
-
-XPCOMUtils.defineLazyServiceGetter(this, "gSysMsgr",
-                                   "@mozilla.org/system-message-internal;1",
-                                   "nsISystemMessagesInternal");
-
-XPCOMUtils.defineLazyServiceGetter(this, "gNetworkManager",
-                                   "@mozilla.org/network/manager;1",
-                                   "nsINetworkManager");
-
-XPCOMUtils.defineLazyServiceGetter(this, "gNetworkService",
-                                   "@mozilla.org/network/service;1",
-                                   "nsINetworkService");
-
-this.EXPORTED_SYMBOLS = ["WifiP2pManager"];
-
-const EVENT_IGNORED                      = -1;
-const EVENT_UNKNOWN                      = -2;
-
-// Events from supplicant for p2p.
-const EVENT_P2P_DEVICE_FOUND             = 0;
-const EVENT_P2P_DEVICE_LOST              = 1;
-const EVENT_P2P_GROUP_STARTED            = 2;
-const EVENT_P2P_GROUP_REMOVED            = 3;
-const EVENT_P2P_PROV_DISC_PBC_REQ        = 4;
-const EVENT_P2P_PROV_DISC_PBC_RESP       = 5;
-const EVENT_P2P_PROV_DISC_SHOW_PIN       = 6;
-const EVENT_P2P_PROV_DISC_ENTER_PIN      = 7;
-const EVENT_P2P_GO_NEG_REQUEST           = 8;
-const EVENT_P2P_GO_NEG_SUCCESS           = 9;
-const EVENT_P2P_GO_NEG_FAILURE           = 10;
-const EVENT_P2P_GROUP_FORMATION_SUCCESS  = 11;
-const EVENT_P2P_GROUP_FORMATION_FAILURE  = 12;
-const EVENT_P2P_FIND_STOPPED             = 13;
-const EVENT_P2P_INVITATION_RESULT        = 14;
-const EVENT_P2P_INVITATION_RECEIVED      = 15;
-const EVENT_P2P_PROV_DISC_FAILURE        = 16;
-
-// Events from supplicant but not p2p specific.
-const EVENT_AP_STA_DISCONNECTED          = 100;
-const EVENT_AP_STA_CONNECTED             = 101;
-
-// Events from DOM.
-const EVENT_P2P_SET_PAIRING_CONFIRMATION = 1000;
-const EVENT_P2P_CMD_CONNECT              = 1001;
-const EVENT_P2P_CMD_DISCONNECT           = 1002;
-const EVENT_P2P_CMD_ENABLE               = 1003;
-const EVENT_P2P_CMD_DISABLE              = 1004;
-const EVENT_P2P_CMD_ENABLE_SCAN          = 1005;
-const EVENT_P2P_CMD_DISABLE_SCAN         = 1006;
-const EVENT_P2P_CMD_BLOCK_SCAN           = 1007;
-const EVENT_P2P_CMD_UNBLOCK_SCAN         = 1008;
-
-// Internal events.
-const EVENT_TIMEOUT_PAIRING_CONFIRMATION = 10000;
-const EVENT_TIMEOUT_NEG_REQ              = 10001;
-const EVENT_TIMEOUT_CONNECTING           = 10002;
-const EVENT_P2P_ENABLE_SUCCESS           = 10003;
-const EVENT_P2P_ENABLE_FAILED            = 10004;
-const EVENT_P2P_DISABLE_SUCCESS          = 10005;
-
-// WPS method string.
-const WPS_METHOD_PBC     = "pbc";
-const WPS_METHOD_DISPLAY = "display";
-const WPS_METHOD_KEYPAD  = "keypad";
-
-// Role string.
-const P2P_ROLE_GO     = "GO";
-const P2P_ROLE_CLIENT = "client";
-
-// System message for pairing request.
-const PAIRING_REQUEST_SYS_MSG = "wifip2p-pairing-request";
-
-// Configuration.
-const P2P_INTERFACE_NAME = "p2p0";
-const DEFAULT_GO_INTENT = 15;
-const DEFAULT_P2P_DEVICE_NAME = "FirefoxPhone";
-const P2P_SCAN_TIMEOUT_SEC = 120;
-const DEFAULT_P2P_WPS_METHODS = "virtual_push_button physical_display keypad"; // For wpa_supplicant.
-const DEFAULT_P2P_DEVICE_TYPE = "10-0050F204-5"; // For wpa_supplicant.
-
-const GO_NETWORK_INTERFACE = {
-  ip:         "192.168.2.1",
-  maskLength: 24,
-  gateway:    "192.168.2.1",
-  dns1:       "0.0.0.0",
-  dns2:       "0.0.0.0",
-  dhcpServer: "192.168.2.1"
-};
-
-const GO_DHCP_SERVER_IP_RANGE = {
-  startIp: "192.168.2.10",
-  endIp:   "192.168.2.30"
-};
-
-var gDebug = false;
-
-// Device Capability bitmap
-const DEVICE_CAPAB_SERVICE_DISCOVERY         = 1;
-const DEVICE_CAPAB_CLIENT_DISCOVERABILITY    = 1<<1;
-const DEVICE_CAPAB_CONCURRENT_OPER           = 1<<2;
-const DEVICE_CAPAB_INFRA_MANAGED             = 1<<3;
-const DEVICE_CAPAB_DEVICE_LIMIT              = 1<<4;
-const DEVICE_CAPAB_INVITATION_PROCEDURE      = 1<<5;
-
-// Group Capability bitmap
-const GROUP_CAPAB_GROUP_OWNER                = 1;
-const GROUP_CAPAB_PERSISTENT_GROUP           = 1<<1;
-const GROUP_CAPAB_GROUP_LIMIT                = 1<<2;
-const GROUP_CAPAB_INTRA_BSS_DIST             = 1<<3;
-const GROUP_CAPAB_CROSS_CONN                 = 1<<4;
-const GROUP_CAPAB_PERSISTENT_RECONN          = 1<<5;
-const GROUP_CAPAB_GROUP_FORMATION            = 1<<6;
-
-// Constants defined in wpa_supplicants.
-const DEV_PW_REGISTRAR_SPECIFIED = 5;
-const DEV_PW_USER_SPECIFIED      = 1;
-const DEV_PW_PUSHBUTTON          = 4;
-
-this.WifiP2pManager = function (aP2pCommand, aNetUtil) {
-  function debug(aMsg) {
-    if (gDebug) {
-      dump('-------------- WifiP2pManager: ' + aMsg);
-    }
-  }
-
-  let manager = {};
-
-  let _stateMachine = P2pStateMachine(aP2pCommand, aNetUtil);
-
-  // Set debug flag to true or false.
-  //
-  // @param aDebug Boolean to indicate enabling or disabling the debug flag.
-  manager.setDebug = function(aDebug) {
-    gDebug = aDebug;
-  };
-
-  // Set observer of observing internal state machine events.
-  //
-  // @param aObserver Used to notify WifiWorker what's happening
-  //        in the internal p2p state machine.
-  manager.setObserver = function(aObserver) {
-    _stateMachine.setObserver(aObserver);
-  };
-
-  // Handle wpa_supplicant events.
-  //
-  // @param aEventString string from wpa_supplicant.
-  manager.handleEvent = function(aEventString) {
-    let event = parseEventString(aEventString);
-    if (EVENT_UNKNOWN === event.id || EVENT_IGNORED === event.id) {
-      debug('Unknow or ignored event: ' + aEventString);
-      return false;
-    }
-    return _stateMachine.sendEvent(event);
-  };
-
-  // Set the confirmation of pairing request.
-  //
-  // @param aResult Object of confirmation result which contains:
-  //    .accepted: user granted.
-  //    .pin: pin code which is displaying or input by user.
-  //    .wpsMethod: string of "pbc" or "display" or "keypad".
-  manager.setPairingConfirmation = function(aResult) {
-    let event = {
-      id: EVENT_P2P_SET_PAIRING_CONFIRMATION,
-      info: {
-        accepted: aResult.accepted,
-        pin: aResult.pin
-      }
-    };
-    _stateMachine.sendEvent(event);
-  };
-
-  // Connect to a known peer.
-  //
-  // @param aAddress MAC address of the peer to connect.
-  // @param aWpsMethod String of "pbc" or "display" or "keypad".
-  // @param aGoIntent Number from 0 to 15.
-  // @param aCallback Callback |true| on attempting to connect.
-  //                          |false| on failed to connect.
-  manager.connect = function(aAddress, aWpsMethod, aGoIntent, aCallback) {
-    let event = {
-      id: EVENT_P2P_CMD_CONNECT,
-      info: {
-        wpsMethod: aWpsMethod,
-        address: aAddress,
-        goIntent: aGoIntent,
-        onDoConnect: aCallback
-      }
-    };
-    _stateMachine.sendEvent(event);
-  };
-
-  // Disconnect with a known peer.
-  //
-  // @param aAddress The address the user desires to disconect.
-  // @param aCallback Callback |true| on "attempting" to disconnect.
-  //                           |false| on failed to disconnect.
-  manager.disconnect = function(aAddress, aCallback) {
-    let event = {
-      id: EVENT_P2P_CMD_DISCONNECT,
-      info: {
-        address: aAddress,
-        onDoDisconnect: aCallback
-      }
-    };
-    _stateMachine.sendEvent(event);
-  };
-
-  // Enable/disable wifi p2p.
-  //
-  // @param aEnabled |true| to enable, |false| to disable.
-  // @param aCallbacks object for callbacks:
-  //   .onEnabled
-  //   .onDisabled
-  //   .onSupplicantConnected
-  manager.setEnabled = function(aEnabled, aCallbacks) {
-    let event = {
-      id: (aEnabled ? EVENT_P2P_CMD_ENABLE : EVENT_P2P_CMD_DISABLE),
-      info: {
-        onEnabled: aCallbacks.onEnabled,
-        onDisabled: aCallbacks.onDisabled,
-        onSupplicantConnected: aCallbacks.onSupplicantConnected
-      }
-    };
-    _stateMachine.sendEvent(event);
-  };
-
-  // Enable/disable the wifi p2p scan.
-  //
-  // @param aEnabled |true| to enable scan, |false| to disable scan.
-  // @param aCallback Callback |true| on success to enable/disable scan.
-  //                           |false| on failed to enable/disable scan.
-  manager.setScanEnabled = function(aEnabled, aCallback) {
-    let event = {
-      id: (aEnabled ? EVENT_P2P_CMD_ENABLE_SCAN : EVENT_P2P_CMD_DISABLE_SCAN),
-      info: { callback: aCallback }
-    };
-    _stateMachine.sendEvent(event);
-  };
-
-  // Block wifi p2p scan.
-  manager.blockScan = function() {
-    _stateMachine.sendEvent({ id: EVENT_P2P_CMD_BLOCK_SCAN });
-  };
-
-  // Un-block and do the pending scan if any.
-  manager.unblockScan = function() {
-    _stateMachine.sendEvent({ id: EVENT_P2P_CMD_UNBLOCK_SCAN });
-  };
-
-  // Set the p2p device name.
-  manager.setDeviceName = function(newDeivceName, callback) {
-    aP2pCommand.setDeviceName(newDeivceName, callback);
-  };
-
-  // Parse wps_supplicant event string.
-  //
-  // @param aEventString The raw event string from wpa_supplicant.
-  //
-  // @return Object:
-  //   .id: a number to represent an event.
-  //   .info: the additional information carried by this event string.
-  function parseEventString(aEventString) {
-    if (isIgnoredEvent(aEventString)) {
-      return { id: EVENT_IGNORED };
-    }
-
-    let match = RegExp("p2p_dev_addr=([0-9a-fA-F:]+) " +
-                       "pri_dev_type=([0-9a-zA-Z-]+) " +
-                       "name='(.*)' " +
-                       "config_methods=0x([0-9a-fA-F]+) " +
-                       "dev_capab=0x([0-9a-fA-F]+) " +
-                       "group_capab=0x([0-9a-fA-F]+) ").exec(aEventString + ' ');
-
-    let tokens = aEventString.split(" ");
-
-    let id = EVENT_UNKNOWN;
-
-    // general info.
-    let info = {};
-
-    if (match) {
-      info = {
-        address:   match[1] ? match[1] : null,
-        type:      match[2] ? match[2] : null,
-        name:      match[3] ? match[3] : null,
-        wpsFlag:   match[4] ? parseInt(match[4], 16) : null,
-        devFlag:   match[5] ? parseInt(match[5], 16) : null,
-        groupFlag: match[6] ? parseInt(match[6], 16) : null
-      };
-    }
-
-    if (0 === aEventString.indexOf("P2P-DEVICE-FOUND")) {
-      id = EVENT_P2P_DEVICE_FOUND;
-      info.wpsCapabilities = wpsFlagToCapabilities(info.wpsFlag);
-      info.isGroupOwner = isPeerGroupOwner(info.groupFlag);
-    } else if (0 === aEventString.indexOf("P2P-DEVICE-LOST")) {
-      // e.g. "P2P-DEVICE-LOST p2p_dev_addr=5e:0a:5b:15:1f:80".
-      id = EVENT_P2P_DEVICE_LOST;
-      info.address = /p2p_dev_addr=([0-9a-f:]+)/.exec(aEventString)[1];
-    } else if (0 === aEventString.indexOf("P2P-GROUP-STARTED")) {
-      // e.g. "P2P-GROUP-STARTED wlan0-p2p-0 GO ssid="DIRECT-3F Testing
-      //       passphrase="12345678" go_dev_addr=02:40:61:c2:f3:b7 [PERSISTENT]".
-
-      id = EVENT_P2P_GROUP_STARTED;
-      let groupMatch = RegExp('ssid="(.*)" ' +
-                              'freq=([0-9]*) ' +
-                              '(passphrase|psk)=([^ ]+) ' +
-                              'go_dev_addr=([0-9a-f:]+)').exec(aEventString);
-      info.ssid = groupMatch[1];
-      info.freq = groupMatch[2];
-      if ('passphrase' === groupMatch[3]) {
-        let s = groupMatch[4]; // e.g. "G7jHkkz9".
-        info.passphrase = s.substring(1, s.length-1); // Trim the double quote.
-      } else { // psk
-        info.psk = groupMatch[4];
-      }
-      info.goAddress = groupMatch[5];
-      info.ifname = tokens[1];
-      info.role = tokens[2];
-    } else if (0 === aEventString.indexOf("P2P-GROUP-REMOVED")) {
-      id = EVENT_P2P_GROUP_REMOVED;
-      // e.g. "P2P-GROUP-REMOVED wlan0-p2p-0 GO".
-      info.ifname = tokens[1];
-      info.role = tokens[2];
-    } else if (0 === aEventString.indexOf("P2P-PROV-DISC-PBC-REQ")) {
-      id = EVENT_P2P_PROV_DISC_PBC_REQ;
-      info.wpsMethod = WPS_METHOD_PBC;
-    } else if (0 === aEventString.indexOf("P2P-PROV-DISC-PBC-RESP")) {
-      id = EVENT_P2P_PROV_DISC_PBC_RESP;
-      // The address is different from the general pattern.
-      info.address = aEventString.split(" ")[1];
-      info.wpsMethod = WPS_METHOD_PBC;
-    } else if (0 === aEventString.indexOf("P2P-PROV-DISC-SHOW-PIN")) {
-      id = EVENT_P2P_PROV_DISC_SHOW_PIN;
-      // Obtain peer address and pin from tokens.
-      info.address = tokens[1];
-      info.pin     = tokens[2];
-      info.wpsMethod = WPS_METHOD_DISPLAY;
-    } else if (0 === aEventString.indexOf("P2P-PROV-DISC-ENTER-PIN")) {
-      id = EVENT_P2P_PROV_DISC_ENTER_PIN;
-      // Obtain peer address from tokens.
-      info.address = tokens[1];
-      info.wpsMethod = WPS_METHOD_KEYPAD;
-    } else if (0 === aEventString.indexOf("P2P-GO-NEG-REQUEST")) {
-      id = EVENT_P2P_GO_NEG_REQUEST;
-      info.address = tokens[1];
-      switch (parseInt(tokens[2].split("=")[1], 10)) {
-        case DEV_PW_REGISTRAR_SPECIFIED: // (5) Peer is display.
-          info.wpsMethod = WPS_METHOD_KEYPAD;
-          break;
-        case DEV_PW_USER_SPECIFIED: // (1) Peer is keypad.
-          info.wpsMethod = WPS_METHOD_DISPLAY;
-          break;
-        case DEV_PW_PUSHBUTTON: // (4) Peer is pbc.
-          info.wpsMethod = WPS_METHOD_PBC;
-          break;
-        default:
-          debug('Unknown wps method from event P2P-GO-NEG-REQUEST');
-          break;
-      }
-    } else if (0 === aEventString.indexOf("P2P-GO-NEG-SUCCESS")) {
-      id = EVENT_P2P_GO_NEG_SUCCESS;
-    } else if (0 === aEventString.indexOf("P2P-GO-NEG-FAILURE")) {
-      id = EVENT_P2P_GO_NEG_FAILURE;
-    } else if (0 === aEventString.indexOf("P2P-GROUP-FORMATION-FAILURE")) {
-      id = EVENT_P2P_GROUP_FORMATION_FAILURE;
-    } else if (0 === aEventString.indexOf("P2P-GROUP-FORMATION-SUCCESS")) {
-      id = EVENT_P2P_GROUP_FORMATION_SUCCESS;
-    } else if (0 === aEventString.indexOf("P2P-FIND-STOPPED")) {
-      id = EVENT_P2P_FIND_STOPPED;
-    } else if (0 === aEventString.indexOf("P2P-INVITATION-RESULT")) {
-      id = EVENT_P2P_INVITATION_RESULT;
-      info.status = /status=([0-9]+)/.exec(aEventString)[1];
-    } else if (0 === aEventString.indexOf("P2P-INVITATION-RECEIVED")) {
-      // e.g. "P2P-INVITATION-RECEIVED sa=32:85:a9:da:e6:1f persistent=7".
-      id = EVENT_P2P_INVITATION_RECEIVED;
-      info.address = /sa=([0-9a-f:]+)/.exec(aEventString)[1];
-      info.netId = /persistent=([0-9]+)/.exec(aEventString)[1];
-    } else if (0 === aEventString.indexOf("P2P-PROV-DISC-FAILURE")) {
-      id = EVENT_P2P_PROV_DISC_FAILURE;
-    } else {
-      // Not P2P event but we do receive it. Try to recognize it.
-      if (0 === aEventString.indexOf("AP-STA-DISCONNECTED")) {
-        id = EVENT_AP_STA_DISCONNECTED;
-        info.address = tokens[1];
-      } else if (0 === aEventString.indexOf("AP-STA-CONNECTED")) {
-        id = EVENT_AP_STA_CONNECTED;
-        info.address = tokens[1];
-      } else {
-        // Neither P2P event nor recognized supplicant event.
-        debug('Unknwon event string: ' + aEventString);
-      }
-    }
-
-    let event = {id: id, info: info};
-    debug('Event parsing result: ' + aEventString + ": " + JSON.stringify(event));
-
-    return event;
-  }
-
-  function isIgnoredEvent(aEventString) {
-    const IGNORED_EVENTS = [
-      "CTRL-EVENT-BSS-ADDED",
-      "CTRL-EVENT-BSS-REMOVED",
-      "CTRL-EVENT-SCAN-RESULTS",
-      "CTRL-EVENT-STATE-CHANGE",
-      "WPS-AP-AVAILABLE",
-      "WPS-ENROLLEE-SEEN"
-    ];
-    for(let i = 0; i < IGNORED_EVENTS.length; i++) {
-      if (0 === aEventString.indexOf(IGNORED_EVENTS[i])) {
-        return true;
-      }
-    }
-    return false;
-  }
-
-  function isPeerGroupOwner(aGroupFlag) {
-    return (aGroupFlag & GROUP_CAPAB_GROUP_OWNER) !== 0;
-  }
-
-  // Convert flag to a wps capability array.
-  //
-  // @param aWpsFlag Number that represents the wps capabilities.
-  // @return Array of WPS flag.
-  function wpsFlagToCapabilities(aWpsFlag) {
-    let wpsCapabilities = [];
-    if (aWpsFlag & 0x8) {
-      wpsCapabilities.push(WPS_METHOD_DISPLAY);
-    }
-    if (aWpsFlag & 0x80) {
-      wpsCapabilities.push(WPS_METHOD_PBC);
-    }
-    if (aWpsFlag & 0x100) {
-      wpsCapabilities.push(WPS_METHOD_KEYPAD);
-    }
-    return wpsCapabilities;
-  }
-
-  _stateMachine.start();
-  return manager;
-};
-
-function P2pStateMachine(aP2pCommand, aNetUtil) {
-  function debug(aMsg) {
-    if (gDebug) {
-      dump('-------------- WifiP2pStateMachine: ' + aMsg);
-    }
-  }
-
-  let p2pSm = {};  // The state machine to return.
-
-  let _sm = StateMachine('WIFIP2P'); // The general purpose state machine.
-
-  // Information we need to keep track across states.
-  let _observer;
-
-  let _onEnabled;
-  let _onDisabled;
-  let _onSupplicantConnected;
-  let _savedConfig = {}; // Configuration used to do P2P_CONNECT.
-  let _groupInfo = {};   // The information of the group we have formed.
-  let _removedGroupInfo = {}; // Used to store the group info we are going to remove.
-
-  let _scanBlocked = false;
-  let _scanPostponded = false;
-
-  let _localDevice = {
-    address: "",
-    deviceName: DEFAULT_P2P_DEVICE_NAME + "_" + libcutils.property_get("ro.build.product"),
-    wpsCapabilities: [WPS_METHOD_PBC, WPS_METHOD_KEYPAD, WPS_METHOD_DISPLAY]
-  };
-
-  let _p2pNetworkInterface = {
-    QueryInterface: XPCOMUtils.generateQI([Ci.nsINetworkInterface]),
-
-    info: {
-      QueryInterface: XPCOMUtils.generateQI([Ci.nsINetworkInfo]),
-
-      state: Ci.nsINetworkInfo.NETWORK_STATE_DISCONNECTED,
-      type: Ci.nsINetworkInfo.NETWORK_TYPE_WIFI_P2P,
-      name: P2P_INTERFACE_NAME,
-      ips: [],
-      prefixLengths: [],
-      dnses: [],
-      gateways: [],
-
-      getAddresses: function (ips, prefixLengths) {
-        ips.value = this.ips.slice();
-        prefixLengths.value = this.prefixLengths.slice();
-
-        return this.ips.length;
-      },
-
-      getGateways: function (count) {
-        if (count) {
-          count.value = this.gateways.length;
-        }
-        return this.gateways.slice();
-      },
-
-      getDnses: function (count) {
-        if (count) {
-          count.value = this.dnses.length;
-        }
-        return this.dnses.slice();
-      }
-    },
-
-    httpProxyHost: null,
-    httpProxyPort: null,
-
-    // help
-    registered: false
-  };
-
-  //---------------------------------------------------------
-  // State machine APIs.
-  //---------------------------------------------------------
-
-  // Register the observer which is implemented in WifiP2pWorkerObserver.jsm.
-  //
-  // @param aObserver:
-  //   .onEnabled
-  //   .onDisbaled
-  //   .onPeerFound
-  //   .onPeerLost
-  //   .onConnecting
-  //   .onConnected
-  //   .onDisconnected
-  //   .onLocalDeviceChanged
-  p2pSm.setObserver = function(aObserver) {
-    _observer = aObserver;
-  };
-
-  p2pSm.start = function() {
-    _sm.start(stateDisabled);
-  };
-
-  p2pSm.sendEvent = function(aEvent) {
-    let willBeHandled = isInP2pManagedState(_sm.getCurrentState());
-    _sm.sendEvent(aEvent);
-    return willBeHandled;
-  };
-
-  // Initialize internal state machine _sm.
-  _sm.setDefaultEventHandler(handleEventCommon);
-
-  //----------------------------------------------------------
-  // State definition.
-  //----------------------------------------------------------
-
-  // The initial state.
-  var stateDisabled = _sm.makeState("DISABLED", {
-    enter: function() {
-      _onEnabled = null;
-      _onSupplicantConnected = null;
-      _savedConfig = null;
-      _groupInfo = null;
-      _removedGroupInfo = null;
-      _scanBlocked = false;
-      _scanPostponded = false;
-
-      unregisterP2pNetworkInteface();
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_CMD_ENABLE:
-          _onEnabled = aEvent.info.onEnabled;
-          _onSupplicantConnected = aEvent.info.onSupplicantConnected;
-          _sm.gotoState(stateEnabling);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-      return true;
-    }
-  });
-
-  // The state where we are trying to enable wifi p2p.
-  var stateEnabling = _sm.makeState("ENABLING", {
-    enter: function() {
-
-      function onFailure()
-      {
-        _onEnabled(false);
-        _observer.onDisabled();
-        _sm.gotoState(stateDisabled);
-      }
-
-      function onSuccess()
-      {
-        _onEnabled(true);
-        _observer.onEnabled();
-        _sm.gotoState(stateInactive);
-      }
-
-      _sm.pause();
-
-      // This function will only call back on success.
-      function connectToSupplicantIfNeeded(callback) {
-        if (aP2pCommand.getSdkVersion() >= 19) {
-          // No need to connect to supplicant on KK. Call back directly.
-          callback();
-          return;
-        }
-        aP2pCommand.connectToSupplicant(function (status) {
-          if (0 !== status) {
-            debug('Failed to connect to p2p0');
-            onFailure();
-            return;
-          }
-          debug('wpa_supplicant p2p0 connected!');
-          _onSupplicantConnected();
-          callback();
-        });
-      }
-
-      // Step 1: Connect to p2p0 if needed.
-      connectToSupplicantIfNeeded(function callback () {
-        let detail;
-
-        // Step 2: Get MAC address.
-        if (!_localDevice.address) {
-          aP2pCommand.getMacAddress(function (address) {
-            if (!address) {
-              debug('Failed to get MAC address....');
-              onFailure();
-              return;
-            }
-            debug('Got mac address: ' + address);
-            _localDevice.address = address;
-            _observer.onLocalDeviceChanged(_localDevice);
-          });
-        }
-
-        // Step 3: Enable p2p with the device name and wps methods.
-        detail = { deviceName: _localDevice.deviceName,
-                   deviceType: libcutils.property_get("ro.moz.wifi.p2p_device_type") || DEFAULT_P2P_DEVICE_TYPE,
-                   wpsMethods: libcutils.property_get("ro.moz.wifi.p2p_wps_methods") || DEFAULT_P2P_WPS_METHODS };
-
-        aP2pCommand.p2pEnable(detail, function (success) {
-          if (!success) {
-            debug('Failed to enable p2p');
-            onFailure();
-            return;
-          }
-
-          debug('P2P is enabled! Enabling net interface...');
-
-          // Step 4: Enable p2p0 net interface. wpa_supplicant may have
-          //         already done it for us.
-          gNetworkService.enableInterface(P2P_INTERFACE_NAME, function (success) {
-            onSuccess();
-          });
-        });
-      });
-    },
-
-    handleEvent: function(aEvent) {
-      // We won't receive any event since all of them will be blocked.
-      return true;
-    }
-  });
-
-  // The state just after enabling wifi direct.
-  var stateInactive = _sm.makeState("INACTIVE", {
-    enter: function() {
-      registerP2pNetworkInteface();
-
-      if (_sm.getPreviousState() !== stateEnabling) {
-        _observer.onDisconnected(_savedConfig);
-      }
-
-      _savedConfig = null; // Used to connect p2p peer.
-      _groupInfo   = null; // The information of the formed group.
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        // Receiving the following 3 states implies someone is trying to
-        // connect to me.
-        case EVENT_P2P_PROV_DISC_PBC_REQ:
-        case EVENT_P2P_PROV_DISC_SHOW_PIN:
-        case EVENT_P2P_PROV_DISC_ENTER_PIN:
-          debug('Someone is trying to connect to me: ' + JSON.stringify(aEvent.info));
-
-          _savedConfig = {
-            name:      aEvent.info.name,
-            address:   aEvent.info.address,
-            wpsMethod: aEvent.info.wpsMethod,
-            goIntent:  DEFAULT_GO_INTENT,
-            pin:       aEvent.info.pin // EVENT_P2P_PROV_DISC_SHOW_PIN only.
-          };
-
-          _sm.gotoState(stateWaitingForConfirmation);
-          break;
-
-        // Connect to a peer.
-        case EVENT_P2P_CMD_CONNECT:
-          debug('Trying to connect to peer: ' + JSON.stringify(aEvent.info));
-
-          _savedConfig = {
-            address:   aEvent.info.address,
-            wpsMethod: aEvent.info.wpsMethod,
-            goIntent:  aEvent.info.goIntent
-          };
-
-          _sm.gotoState(stateProvisionDiscovery);
-          aEvent.info.onDoConnect(true);
-          break;
-
-        case EVENT_P2P_INVITATION_RECEIVED:
-          _savedConfig = {
-            address: aEvent.info.address,
-            wpsMethod: WPS_METHOD_PBC,
-            goIntent: DEFAULT_GO_INTENT,
-            netId: aEvent.info.netId
-          };
-          _sm.gotoState(stateWaitingForInvitationConfirmation);
-          break;
-
-        case EVENT_P2P_GROUP_STARTED:
-          // Most likely the peer just reinvoked a peristen group and succeeeded.
-
-          _savedConfig = { address: aEvent.info.goAddress };
-
-          _sm.pause();
-          handleGroupStarted(aEvent.info, function (success) {
-            _sm.resume();
-          });
-          break;
-
-        case EVENT_AP_STA_DISCONNECTED:
-          // We will hit this case when we used to be a group owner and
-          // requested to remove the group we owned.
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-      return true;
-    },
-  });
-
-  // Waiting for user's confirmation.
-  var stateWaitingForConfirmation = _sm.makeState("WAITING_FOR_CONFIRMATION", {
-    timeoutTimer: null,
-
-    enter: function() {
-      gSysMsgr.broadcastMessage(PAIRING_REQUEST_SYS_MSG, _savedConfig);
-      this.timeoutTimer = initTimeoutTimer(30000, EVENT_TIMEOUT_PAIRING_CONFIRMATION);
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_SET_PAIRING_CONFIRMATION:
-          if (!aEvent.info.accepted) {
-            debug('User rejected this request');
-            _sm.gotoState(stateInactive); // Reset to inactive state.
-            break;
-          }
-
-          debug('User accepted this request');
-
-          // The only information we may have to grab from user.
-          _savedConfig.pin = aEvent.info.pin;
-
-          // The case that user requested to form a group ealier on.
-          // Just go to connecting state and do p2p_connect.
-          if (_sm.getPreviousState() === stateProvisionDiscovery) {
-            _sm.gotoState(stateConnecting);
-            break;
-          }
-
-          // Otherwise, wait for EVENT_P2P_GO_NEG_REQUEST.
-          _sm.gotoState(stateWaitingForNegReq);
-          break;
-
-        case EVENT_TIMEOUT_PAIRING_CONFIRMATION:
-          debug('Confirmation timeout!');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_P2P_GO_NEG_REQUEST:
-          _sm.deferEvent(aEvent);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-
-      return true;
-    },
-
-    exit: function() {
-      this.timeoutTimer.cancel();
-      this.timeoutTimer = null;
-    }
-  });
-
-  var stateWaitingForNegReq = _sm.makeState("WAITING_FOR_NEG_REQ", {
-    timeoutTimer: null,
-
-    enter: function() {
-      debug('Wait for EVENT_P2P_GO_NEG_REQUEST');
-      this.timeoutTimer = initTimeoutTimer(30000, EVENT_TIMEOUT_NEG_REQ);
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_GO_NEG_REQUEST:
-          if (aEvent.info.wpsMethod !== _savedConfig.wpsMethod) {
-            debug('Unmatched wps method: ' + aEvent.info.wpsMethod + ", " + _savedConfig.wpsMetho);
-          }
-          _sm.gotoState(stateConnecting);
-          break;
-
-        case EVENT_TIMEOUT_NEG_REQ:
-          debug("Waiting for NEG-REQ timeout");
-          _sm.gotoState(stateInactive);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-      return true;
-    },
-
-    exit: function() {
-      this.timeoutTimer.cancel();
-      this.timeoutTimer = null;
-    }
-  });
-
-  // Waiting for user's confirmation for invitation.
-  var stateWaitingForInvitationConfirmation = _sm.makeState("WAITING_FOR_INV_CONFIRMATION", {
-    timeoutTimer: null,
-
-    enter: function() {
-      gSysMsgr.broadcastMessage(PAIRING_REQUEST_SYS_MSG, _savedConfig);
-      this.timeoutTimer = initTimeoutTimer(30000, EVENT_TIMEOUT_PAIRING_CONFIRMATION);
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_SET_PAIRING_CONFIRMATION:
-          if (!aEvent.info.accepted) {
-            debug('User rejected this request');
-            _sm.gotoState(stateInactive); // Reset to inactive state.
-            break;
-          }
-
-          debug('User accepted this request');
-          _sm.pause();
-          aP2pCommand.p2pGetGroupCapab(_savedConfig.address, function (gc) {
-            let isPeeGroupOwner = gc & GROUP_CAPAB_GROUP_OWNER;
-            _sm.gotoState(isPeeGroupOwner ? stateGroupAdding : stateReinvoking);
-          });
-
-          break;
-
-        case EVENT_TIMEOUT_PAIRING_CONFIRMATION:
-          debug('Confirmation timeout!');
-          _sm.gotoState(stateInactive);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-
-      return true;
-    },
-
-    exit: function() {
-      this.timeoutTimer.cancel();
-      this.timeoutTimer = null;
-    }
-  });
-
-  var stateGroupAdding = _sm.makeState("GROUP_ADDING", {
-    timeoutTimer: null,
-
-    enter: function() {
-      let self = this;
-
-      _observer.onConnecting(_savedConfig);
-
-      _sm.pause();
-      aP2pCommand.p2pGroupAdd(_savedConfig.netId, function (success) {
-        if (!success) {
-          _sm.gotoState(stateInactive);
-          return;
-        }
-        // Waiting for EVENT_P2P_GROUP_STARTED.
-        self.timeoutTimer = initTimeoutTimer(60000, EVENT_TIMEOUT_CONNECTING);
-        _sm.resume();
-      });
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_GROUP_STARTED:
-          _sm.pause();
-          handleGroupStarted(aEvent.info, function (success) {
-            _sm.resume();
-          });
-          break;
-
-        case EVENT_P2P_GO_NEG_FAILURE:
-          debug('Negotiation failure. Go back to inactive state');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_TIMEOUT_CONNECTING:
-          debug('Connecting timeout! Go back to inactive state');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_P2P_GROUP_FORMATION_SUCCESS:
-        case EVENT_P2P_GO_NEG_SUCCESS:
-          break;
-
-        case EVENT_P2P_GROUP_FORMATION_FAILURE:
-          debug('Group formation failure');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_P2P_GROUP_REMOVED:
-          debug('Received P2P-GROUP-REMOVED due to previous failed handleGroupdStarted()');
-          _removedGroupInfo = {
-            role:   aEvent.info.role,
-            ifname: aEvent.info.ifname
-          };
-          _sm.gotoState(stateDisconnecting);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-
-      return true;
-    },
-
-    exit: function() {
-      this.timeoutTimer.cancel();
-      this.timeoutTimer = null;
-    }
-  });
-
-  var stateReinvoking = _sm.makeState("REINVOKING", {
-    timeoutTimer: null,
-
-    enter: function() {
-      let self = this;
-
-      _observer.onConnecting(_savedConfig);
-      _sm.pause();
-      aP2pCommand.p2pReinvoke(_savedConfig.netId, _savedConfig.address, function(success) {
-        if (!success) {
-          _sm.gotoState(stateInactive);
-          return;
-        }
-        // Waiting for EVENT_P2P_GROUP_STARTED.
-        self.timeoutTimer = initTimeoutTimer(60000, EVENT_TIMEOUT_CONNECTING);
-        _sm.resume();
-      });
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_GROUP_STARTED:
-          _sm.pause();
-          handleGroupStarted(aEvent.info, function(success) {
-            _sm.resume();
-          });
-          break;
-
-        case EVENT_P2P_GO_NEG_FAILURE:
-          debug('Negotiation failure. Go back to inactive state');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_TIMEOUT_CONNECTING:
-          debug('Connecting timeout! Go back to inactive state');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_P2P_GROUP_FORMATION_SUCCESS:
-        case EVENT_P2P_GO_NEG_SUCCESS:
-          break;
-
-        case EVENT_P2P_GROUP_FORMATION_FAILURE:
-          debug('Group formation failure');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_P2P_GROUP_REMOVED:
-          debug('Received P2P-GROUP-REMOVED due to previous failed handleGroupdStarted()');
-          _removedGroupInfo = {
-            role:   aEvent.info.role,
-            ifname: aEvent.info.ifname
-          };
-          _sm.gotoState(stateDisconnecting);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-
-      return true;
-    },
-
-    exit: function() {
-      this.timeoutTimer.cancel();
-    }
-  });
-
-  var stateProvisionDiscovery = _sm.makeState("PROVISION_DISCOVERY", {
-    enter: function() {
-      function onDiscoveryCommandSent(success) {
-        if (!success) {
-          _sm.gotoState(stateInactive);
-          debug('Failed to send p2p_prov_disc. Go back to inactive state.');
-          return;
-        }
-
-        debug('p2p_prov_disc has been sent.');
-
-        _sm.resume();
-        // Waiting for EVENT_P2P_PROV_DISC_PBC_RESP or
-        //             EVENT_P2P_PROV_DISC_SHOW_PIN or
-        //             EVENT_P2P_PROV_DISC_ENTER_PIN.
-      }
-
-      _sm.pause();
-      aP2pCommand.p2pProvDiscovery(_savedConfig.address,
-                                   toPeerWpsMethod(_savedConfig.wpsMethod),
-                                   onDiscoveryCommandSent);
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_PROV_DISC_PBC_RESP:
-          _sm.gotoState(stateConnecting); // No need for local user grant.
-          break;
-        case EVENT_P2P_PROV_DISC_SHOW_PIN:
-        case EVENT_P2P_PROV_DISC_ENTER_PIN:
-          if (aEvent.info.wpsMethod !== _savedConfig.wpsMethod) {
-            debug('Unmatched wps method: ' + aEvent.info.wpsMethod + ":" + _savedConfig.wpsMethod);
-          }
-          if (EVENT_P2P_PROV_DISC_SHOW_PIN === aEvent.id) {
-            _savedConfig.pin = aEvent.info.pin;
-          }
-          _sm.gotoState(stateWaitingForConfirmation);
-          break;
-
-        case EVENT_P2P_PROV_DISC_FAILURE:
-          _sm.gotoState(stateInactive);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-      return true;
-    }
-  });
-
-  // We are going to connect to the peer.
-  // |_savedConfig| is supposed to have been filled properly.
-  var stateConnecting = _sm.makeState("CONNECTING", {
-    timeoutTimer: null,
-
-    enter: function() {
-      let self = this;
-
-      if (null === _savedConfig.goIntent) {
-        _savedConfig.goIntent = DEFAULT_GO_INTENT;
-      }
-
-      _observer.onConnecting(_savedConfig);
-
-      let wpsMethodWithPin;
-      if (WPS_METHOD_KEYPAD === _savedConfig.wpsMethod ||
-          WPS_METHOD_DISPLAY === _savedConfig.wpsMethod) {
-        // e.g. '12345678 display or '12345678 keypad'.
-        wpsMethodWithPin = (_savedConfig.pin + ' ' + _savedConfig.wpsMethod);
-      } else {
-        // e.g. 'pbc'.
-        wpsMethodWithPin = _savedConfig.wpsMethod;
-      }
-
-      _sm.pause();
-
-      aP2pCommand.p2pGetGroupCapab(_savedConfig.address, function(gc) {
-        debug('group capabilities of ' + _savedConfig.address + ': ' + gc);
-
-        let isPeerGroupOwner = gc & GROUP_CAPAB_GROUP_OWNER;
-        let config = { address:           _savedConfig.address,
-                       wpsMethodWithPin:  wpsMethodWithPin,
-                       goIntent:          _savedConfig.goIntent,
-                       joinExistingGroup: isPeerGroupOwner };
-
-        aP2pCommand.p2pConnect(config, function (success) {
-          if (!success) {
-            debug('Failed to send p2p_connect');
-            _sm.gotoState(stateInactive);
-            return;
-          }
-          debug('Waiting for EVENT_P2P_GROUP_STARTED.');
-          self.timeoutTimer = initTimeoutTimer(60000, EVENT_TIMEOUT_CONNECTING);
-          _sm.resume();
-        });
-      });
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_GROUP_STARTED:
-          _sm.pause();
-          handleGroupStarted(aEvent.info, function (success) {
-            _sm.resume();
-          });
-          break;
-
-        case EVENT_P2P_GO_NEG_FAILURE:
-          debug('Negotiation failure. Go back to inactive state');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_TIMEOUT_CONNECTING:
-          debug('Connecting timeout! Go back to inactive state');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_P2P_GROUP_FORMATION_SUCCESS:
-        case EVENT_P2P_GO_NEG_SUCCESS:
-          break;
-
-        case EVENT_P2P_GROUP_FORMATION_FAILURE:
-          debug('Group formation failure');
-          _sm.gotoState(stateInactive);
-          break;
-
-        case EVENT_P2P_GROUP_REMOVED:
-          debug('Received P2P-GROUP-REMOVED due to previous failed ' +
-                'handleGroupdStarted()');
-          _removedGroupInfo = {
-            role:   aEvent.info.role,
-            ifname: aEvent.info.ifname
-          };
-          _sm.gotoState(stateDisconnecting);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-
-      return true;
-    },
-
-    exit: function() {
-      this.timeoutTimer.cancel();
-    }
-  });
-
-  var stateConnected = _sm.makeState("CONNECTED", {
-    groupOwner: null,
-
-    enter: function() {
-      this.groupOwner = {
-        macAddress: _groupInfo.goAddress,
-        ipAddress:  _groupInfo.networkInterface.info.gateways[0],
-        passphrase: _groupInfo.passphrase,
-        ssid:       _groupInfo.ssid,
-        freq:       _groupInfo.freq,
-        isLocal:    _groupInfo.isGroupOwner
-      };
-
-      if (!_groupInfo.isGroupOwner) {
-        _observer.onConnected(this.groupOwner, _savedConfig);
-      } else {
-        // If I am a group owner, notify onConnected until EVENT_AP_STA_CONNECTED
-        // is received.
-      }
-
-      _removedGroupInfo = null;
-    },
-
-    handleEvent: function(aEvent) {
-      switch (aEvent.id) {
-        case EVENT_AP_STA_CONNECTED:
-          if (_groupInfo.isGroupOwner) {
-            _observer.onConnected(this.groupOwner, _savedConfig);
-          }
-          break;
-
-        case EVENT_P2P_GROUP_REMOVED:
-          _removedGroupInfo = {
-            role:   aEvent.info.role,
-            ifname: aEvent.info.ifname
-          };
-          _sm.gotoState(stateDisconnecting);
-          break;
-
-        case EVENT_AP_STA_DISCONNECTED:
-          debug('Client disconnected: ' + aEvent.info.address);
-
-          // Now we suppose it's the only client. Remove my group.
-          _sm.pause();
-          aP2pCommand.p2pGroupRemove(_groupInfo.ifname, function (success) {
-            debug('Requested to remove p2p group. Wait for EVENT_P2P_GROUP_REMOVED.');
-            _sm.resume();
-          });
-          break;
-
-        case EVENT_P2P_CMD_DISCONNECT:
-          // Since we only support single connection, we can ignore
-          // the given peer address.
-          _sm.pause();
-          aP2pCommand.p2pGroupRemove(_groupInfo.ifname, function(success) {
-            aEvent.info.onDoDisconnect(true);
-            _sm.resume();
-          });
-
-          debug('Sent disconnect command. Wait for EVENT_P2P_GROUP_REMOVED.');
-          break;
-
-        case EVENT_P2P_PROV_DISC_PBC_REQ:
-        case EVENT_P2P_PROV_DISC_SHOW_PIN:
-        case EVENT_P2P_PROV_DISC_ENTER_PIN:
-          debug('Someone is trying to connect to me: ' + JSON.stringify(aEvent.info));
-
-          _savedConfig = {
-            name:      aEvent.info.name,
-            address:   aEvent.info.address,
-            wpsMethod: aEvent.info.wpsMethod,
-            pin:       aEvent.info.pin
-          };
-
-          _sm.gotoState(stateWaitingForJoiningConfirmation);
-          break;
-
-        default:
-          return false;
-      } // end of switch
-      return true;
-    }
-  });
-
-  var stateWaitingForJoiningConfirmation = _sm.makeState("WAITING_FOR_JOINING_CONFIRMATION", {
-    timeoutTimer: null,
-
-    enter: function() {
-      gSysMsgr.broadcastMessage(PAIRING_REQUEST_SYS_MSG, _savedConfig);
-      this.timeoutTimer = initTimeoutTimer(30000, EVENT_TIMEOUT_PAIRING_CONFIRMATION);
-    },
-
-    handleEvent: function (aEvent) {
-      switch (aEvent.id) {
-        case EVENT_P2P_SET_PAIRING_CONFIRMATION:
-          if (!aEvent.info.accepted) {
-            debug('User rejected invitation!');
-            _sm.gotoState(stateConnected);
-            break;
-          }
-
-          let onWpsCommandSent = function(success) {
-            _observer.onConnecting(_savedConfig);
-            _sm.gotoState(stateConnected);
-          };
-
-          _sm.pause();
-          if (WPS_METHOD_PBC === _savedConfig.wpsMethod) {
-            aP2pCommand.wpsPbc(onWpsCommandSent, _groupInfo.ifname);
-          } else {
-            let detail = { pin: _savedConfig.pin, iface: _groupInfo.ifname };
-            aP2pCommand.wpsPin(detail, onWpsCommandSent);
-          }
-          break;
-
-        case EVENT_TIMEOUT_PAIRING_CONFIRMATION:
-          debug('WAITING_FOR_JOINING_CONFIRMATION timeout!');
-          _sm.gotoState(stateConnected);
-          break;
-
-        default:
-          return false;
-      } // End of switch.
-      return true;
-    },
-
-    exit: function() {
-      this.timeoutTimer.cancel();
-      this.timeoutTimer = null;
-    }
-  });
-
-  var stateDisconnecting = _sm.makeState("DISCONNECTING", {
-    enter: function() {
-      _sm.pause();
-      handleGroupRemoved(_removedGroupInfo, function (success) {
-        if (!success) {
-          debug('Failed to handle group removed event. What can I do?');
-        }
-        _sm.gotoState(stateInactive);
-      });
-    },
-
-    handleEvent: function(aEvent) {
-      return false; // We will not receive any event in this state.
-    }
-  });
-
-  var stateDisabling = _sm.makeState("DISABLING", {
-    enter: function() {
-      _sm.pause();
-      aNetUtil.stopDhcpServer(function (success) { // Stopping DHCP server is harmless.
-        debug('Stop DHCP server result: ' + success);
-        aP2pCommand.p2pDisable(function(success) {
-          debug('P2P function disabled');
-          closeSupplicantConnectionIfNeeded(function() {
-            debug('Supplicant connection closed');
-            gNetworkService.disableInterface(P2P_INTERFACE_NAME, function (success){
-              debug('Disabled interface: ' + P2P_INTERFACE_NAME);
-              _onDisabled(true);
-              _observer.onDisabled();
-              _sm.gotoState(stateDisabled);
-            });
-          });
-        });
-      });
-
-      function closeSupplicantConnectionIfNeeded(callback) {
-        // No need to connect to supplicant on KK. Call back directly.
-        if (aP2pCommand.getSdkVersion() >= 19) {
-          callback();
-          return;
-        }
-        aP2pCommand.closeSupplicantConnection(callback);
-      }
-    },
-
-    handleEvent: function(aEvent) {
-      return false; // We will not receive any event in this state.
-    }
-  });
-
-  //----------------------------------------------------------
-  // Helper functions.
-  //----------------------------------------------------------
-
-  // Handle 'P2P_GROUP_STARTED' event. Note that this function
-  // will also do the state transitioning and error handling.
-  //
-  // @param aInfo Information carried by "P2P_GROUP_STARTED" event:
-  //   .role: P2P_ROLE_GO or P2P_ROLE_CLIENT
-  //   .ssid:
-  //   .freq:
-  //   .passphrase: Used to connect to GO for legacy device.
-  //   .goAddress:
-  //   .ifname: e.g. p2p-p2p0
-  //
-  // @param aCallback Callback function.
-  function handleGroupStarted(aInfo, aCallback) {
-    debug('handleGroupStarted: ' + JSON.stringify(aInfo));
-
-    function onSuccess()
-    {
-      _sm.gotoState(stateConnected);
-      aCallback(true);
-    }
-
-    function onFailure()
-    {
-      debug('Failed to handleGroupdStarted(). Remove the group...');
-      aP2pCommand.p2pGroupRemove(aInfo.ifname, function (success) {
-        aCallback(false);
-
-        if (success) {
-          return; // Stay in current state and wait for EVENT_P2P_GROUP_REMOVED.
-        }
-
-        debug('p2pGroupRemove command error!');
-        _sm.gotoState(stateInactive);
-      });
-    }
-
-    // Save this group information.
-    _groupInfo = aInfo;
-    _groupInfo.isGroupOwner = (P2P_ROLE_GO === aInfo.role);
-
-    if (_groupInfo.isGroupOwner) {
-      debug('Group owner. Start DHCP server');
-      let dhcpServerConfig = { ifname: aInfo.ifname,
-                               startIp: GO_DHCP_SERVER_IP_RANGE.startIp,
-                               endIp: GO_DHCP_SERVER_IP_RANGE.endIp,
-                               serverIp: GO_NETWORK_INTERFACE.ip,
-                               maskLength: GO_NETWORK_INTERFACE.maskLength };
-
-      aNetUtil.startDhcpServer(dhcpServerConfig, function (success) {
-        if (!success) {
-          debug('Failed to start DHCP server');
-          onFailure();
-          return;
-        }
-
-        // Update p2p network interface.
-        _p2pNetworkInterface.info.state = Ci.nsINetworkInfo.NETWORK_STATE_CONNECTED;
-        _p2pNetworkInterface.info.ips = [GO_NETWORK_INTERFACE.ip];
-        _p2pNetworkInterface.info.prefixLengths = [GO_NETWORK_INTERFACE.maskLength];
-        _p2pNetworkInterface.info.gateways = [GO_NETWORK_INTERFACE.ip];
-        handleP2pNetworkInterfaceStateChanged();
-
-        _groupInfo.networkInterface = _p2pNetworkInterface;
-
-        debug('Everything is done. Happy p2p GO~');
-        onSuccess();
-      });
-
-      return;
-    }
-
-    // We are the client.
-
-    debug("Client. Request IP from DHCP server on interface: " + _groupInfo.ifname);
-
-    aNetUtil.runDhcp(aInfo.ifname, 0, function(dhcpData) {
-      if(!dhcpData || !dhcpData.info) {
-        debug('Failed to run DHCP client');
-        onFailure();
-        return;
-      }
-
-      // Save network interface.
-      debug("DHCP request success: " + JSON.stringify(dhcpData.info));
-
-      // Update p2p network interface.
-      let maskLength =
-        netHelpers.getMaskLength(netHelpers.stringToIP(dhcpData.info.mask_str));
-      if (!maskLength) {
-        maskLength = 32; // max prefix for IPv4.
-      }
-      _p2pNetworkInterface.info.state = Ci.nsINetworkInfo.NETWORK_STATE_CONNECTED;
-      _p2pNetworkInterface.info.ips = [dhcpData.info.ipaddr_str];
-      _p2pNetworkInterface.info.prefixLengths = [maskLength];
-      if (typeof dhcpData.info.dns1_str == "string" &&
-          dhcpData.info.dns1_str.length) {
-        _p2pNetworkInterface.info.dnses.push(dhcpData.info.dns1_str);
-      }
-      if (typeof dhcpData.info.dns2_str == "string" &&
-          dhcpData.info.dns2_str.length) {
-        _p2pNetworkInterface.info.dnses.push(dhcpData.info.dns2_str);
-      }
-      _p2pNetworkInterface.info.gateways = [dhcpData.info.gateway_str];
-      handleP2pNetworkInterfaceStateChanged();
-
-      _groupInfo.networkInterface = _p2pNetworkInterface;
-
-      debug('Happy p2p client~');
-      onSuccess();
-    });
-  }
-
-  function resetP2pNetworkInterface() {
-    _p2pNetworkInterface.info.state = Ci.nsINetworkInfo.NETWORK_STATE_DISCONNECTED;
-    _p2pNetworkInterface.info.ips = [];
-    _p2pNetworkInterface.info.prefixLengths = [];
-    _p2pNetworkInterface.info.dnses = [];
-    _p2pNetworkInterface.info.gateways = [];
-  }
-
-  function registerP2pNetworkInteface() {
-    if (!_p2pNetworkInterface.registered) {
-      resetP2pNetworkInterface();
-      gNetworkManager.registerNetworkInterface(_p2pNetworkInterface);
-      _p2pNetworkInterface.registered = true;
-    }
-  }
-
-  function unregisterP2pNetworkInteface() {
-    if (_p2pNetworkInterface.registered) {
-      resetP2pNetworkInterface();
-      gNetworkManager.unregisterNetworkInterface(_p2pNetworkInterface);
-      _p2pNetworkInterface.registered = false;
-    }
-  }
-
-  function handleP2pNetworkInterfaceStateChanged() {
-    gNetworkManager.updateNetworkInterface(_p2pNetworkInterface);
-  }
-
-  // Handle 'P2P_GROUP_STARTED' event.
-  //
-  // @param aInfo information carried by "P2P_GROUP_REMOVED" event:
-  //   .ifname
-  //   .role: "GO" or "client".
-  //
-  // @param aCallback Callback function.
-  function handleGroupRemoved(aInfo, aCallback) {
-    if (!_groupInfo) {
-      debug('No group info. Why?');
-      aCallback(true);
-      return;
-    }
-    if (_groupInfo.ifname !== aInfo.ifname ||
-        _groupInfo.role   !== aInfo.role) {
-      debug('Unmatched group info: ' + JSON.stringify(_groupInfo) +
-            ' v.s. ' + JSON.stringify(aInfo));
-    }
-
-    // Update p2p network interface.
-    _p2pNetworkInterface.info.state = Ci.nsINetworkInfo.NETWORK_STATE_DISCONNECTED;
-    handleP2pNetworkInterfaceStateChanged();
-
-    if (P2P_ROLE_GO === aInfo.role) {
-      aNetUtil.stopDhcpServer(function(success) {
-        debug('Stop DHCP server result: ' + success);
-        aCallback(true);
-      });
-    } else {
-      aNetUtil.stopDhcp(aInfo.ifname, function() {
-        aCallback(true);
-      });
-    }
-  }
-
-  // Non state-specific event handler.
-  function handleEventCommon(aEvent) {
-    switch (aEvent.id) {
-      case EVENT_P2P_DEVICE_FOUND:
-        _observer.onPeerFound(aEvent.info);
-        break;
-
-      case EVENT_P2P_DEVICE_LOST:
-        _observer.onPeerLost(aEvent.info);
-        break;
-
-      case EVENT_P2P_CMD_DISABLE:
-        _onDisabled = aEvent.info.onDisabled;
-        _sm.gotoState(stateDisabling);
-        break;
-
-      case EVENT_P2P_CMD_ENABLE_SCAN:
-        if (_scanBlocked) {
-          _scanPostponded = true;
-          aEvent.info.callback(true);
-          break;
-        }
-        aP2pCommand.p2pEnableScan(P2P_SCAN_TIMEOUT_SEC, aEvent.info.callback);
-        break;
-
-      case EVENT_P2P_CMD_DISABLE_SCAN:
-        aP2pCommand.p2pDisableScan(aEvent.info.callback);
-        break;
-
-      case EVENT_P2P_FIND_STOPPED:
-        break;
-
-      case EVENT_P2P_CMD_BLOCK_SCAN:
-        _scanBlocked = true;
-        aP2pCommand.p2pDisableScan(function(success) {});
-        break;
-
-      case EVENT_P2P_CMD_UNBLOCK_SCAN:
-        _scanBlocked = false;
-        if (_scanPostponded) {
-          aP2pCommand.p2pEnableScan(P2P_SCAN_TIMEOUT_SEC, function(success) {});
-        }
-        break;
-
-      case EVENT_P2P_CMD_CONNECT:
-      case EVENT_P2P_CMD_DISCONNECT:
-        debug("The current state couldn't handle connect/disconnect request. Ignore it.");
-        break;
-
-      default:
-        return false;
-    } // End of switch.
-    return true;
-  }
-
-  function isInP2pManagedState(aState) {
-    let p2pManagedStates = [stateWaitingForConfirmation,
-                            stateWaitingForNegReq,
-                            stateProvisionDiscovery,
-                            stateWaitingForInvitationConfirmation,
-                            stateGroupAdding,
-                            stateReinvoking,
-                            stateConnecting,
-                            stateConnected,
-                            stateDisconnecting];
-
-    for (let i = 0; i < p2pManagedStates.length; i++) {
-      if (aState === p2pManagedStates[i]) {
-        return true;
-      }
-    }
-
-    return false;
-  }
-
-  function initTimeoutTimer(aTimeoutMs, aTimeoutEvent) {
-    let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
-    function onTimerFired() {
-      _sm.sendEvent({ id: aTimeoutEvent });
-      timer = null;
-    }
-    timer.initWithCallback(onTimerFired.bind(this), aTimeoutMs,
-                           Ci.nsITimer.TYPE_ONE_SHOT);
-    return timer;
-  }
-
-  // Converts local WPS method to peer WPS method.
-  function toPeerWpsMethod(aLocalWpsMethod) {
-    switch (aLocalWpsMethod) {
-      case WPS_METHOD_DISPLAY:
-        return WPS_METHOD_KEYPAD;
-      case WPS_METHOD_KEYPAD:
-        return WPS_METHOD_DISPLAY;
-      case WPS_METHOD_PBC:
-        return WPS_METHOD_PBC;
-      default:
-        return WPS_METHOD_PBC; // Use "push button" as the default method.
-    }
-  }
-
-  return p2pSm;
-}
-
-this.WifiP2pManager.INTERFACE_NAME = P2P_INTERFACE_NAME;